How many weeks are in September?
September has 30 days, which is 4 full weeks plus 2 days (30 ÷ 7 = 4.29). Those 2 extra days mean that some days of the week appear five times. In September 2026 there are five Tuesdays and Wednesdays, and four of every other day. On a wall calendar, September usually spans five rows, and six when it starts late in the week.
September in other years
| Month | Days | Starts on | Weekdays | Weekend days |
|---|---|---|---|---|
| September 2025 | 30 | Monday | 22 | 8 |
| September 2026 | 30 | Tuesday | 22 | 8 |
| September 2027 | 30 | Wednesday | 22 | 8 |
| September 2028 | 30 | Friday | 21 | 9 |
| September 2029 | 30 | Saturday | 20 | 10 |
| September 2030 | 30 | Sunday | 21 | 9 |
Weekdays are Monday to Friday, counted before public holidays are removed. To count working days between two exact dates, use the date duration calculator.
Days in every month of 2026
| Month | Days | Weeks | Weekdays |
|---|---|---|---|
| January | 31 | 4.43 | 22 |
| February | 28 | 4.00 | 20 |
| March | 31 | 4.43 | 22 |
| April | 30 | 4.29 | 22 |
| May | 31 | 4.43 | 21 |
| June | 30 | 4.29 | 22 |
| July | 31 | 4.43 | 23 |
| August | 31 | 4.43 | 21 |
| September | 30 | 4.29 | 22 |
| October | 31 | 4.43 | 22 |
| November | 30 | 4.29 | 21 |
| December | 31 | 4.43 | 23 |
Seven months have 31 days (January, March, May, July, August, October and December), four have 30 (April, June, September and November), and February has 28 or 29. The old rhyme "Thirty days hath September, April, June and November" is the easiest way to remember them. Another trick is to count on your knuckles: every knuckle is a 31-day month and every dip between them is a shorter one. The whole year has 365 days in 2026.
Frequently asked questions
How many days are in September?
September always has 30 days.
How many weeks are in September?
September has 4 full weeks and 2 days, or 4.29 weeks.
How many weekdays are in September 2026?
22 weekdays (Monday to Friday) and 8 weekend days, before public holidays are taken off.
How many weekends are in September 2026?
September 2026 has 4 Saturdays and 4 Sundays.
How many hours are in September?
720 hours, or 43,200 minutes.
How do I count the days until a date?
Pick the date in the days until calculator. It counts calendar days from today, not counting today, and shows weeks, months and business days too.
Does the count include today?
No. A date tomorrow is 1 day away. For the days between two dates you can choose to include the end date in the date duration calculator.
What is the difference between days until and date duration?
Days until always counts from today. Date duration counts between any two dates you choose, past or future.